As used in this Act:
"Land Trust" means any arrangement under which the title, both legal and equitable, to real property, is held by a trustee and the interest of the beneficiary is personal property and under which the beneficiary or any person designated in writing by the beneficiary, has the exclusive power to direct or control the trustee in dealing with the title and the exclusive control of the management, operation, renting and selling of the trust property together with the exclusive right to the earnings, avails and proceeds of said property is in the beneficiary of the trust.
"Residential property" means any single family residence or multiple dwelling structure containing 6 or less single dwelling units for 6 or less family units, living independently of each other.
"Real estate installment contract" means any agreement or contract for a trustee's or warranty deed, or otherwise, under which the purchase price of residential property is to be paid in installments over a period in excess of 5 years with title to the property to be conveyed to the buyer upon his payment of the purchase price or a specified portion thereof.
765 ILCS 430/1